Unless you can find someone who has a Yag laser, you are going to have a tough time of it.
Most people who do laser engraving and cutting like myself have CO2 lasers and those don't cut metal- trust me- if they did I could make way more money than I do.

You might want to find someone who does water jet cutting, they can cut metal no problem- the only caveat might be that you are doing something really small.

What kind of metal are you wanting cut??
If its thin aluminum- like a few mm thick, you can cut it with a hand jeweler's saw.